Patents by Inventor Robert D. Gilcrist

Robert D. Gilcrist has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Determining damage to a casing string in a wellbore
    Patent number: 10428639
    Abstract: Damage to a casing string in a wellbore resulting from a wellbore operation can be predicted. For example, a stiff string model can be used to determine a contact point between the casing string and a well tool positionable within the casing string for performing the wellbore operation. The stiff string model can be used to determine a force of the well tool against the casing string at the contact point. The force can be used to determine a volume of damage to the casing string proximate to the contact point. A depth of a groove formed in the casing string proximate to the contact point can be determined based on the volume of damage.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: October 1, 2019
    Assignee: Landmark Graphics Corporation
    Inventors: Aniket, Adolfo Gonzales, Robello Samuel, Robert D. Gilcrist
  • DETERMINING DAMAGE TO A CASING STRING IN A WELLBORE
    Publication number: 20180073347
    Abstract: Damage to a casing string in a wellbore resulting from a wellbore operation can be predicted. For example, a stiff string model can be used to determine a contact point between the casing string and a well tool positionable within the casing string for performing the wellbore operation. The stiff string model can be used to determine a force of the well tool against the casing string at the contact point. The force can be used to determine a volume of damage to the casing string proximate to the contact point. A depth of a groove formed in the casing string proximate to the contact point can be determined based on the volume of damage.
    Type: Application
    Filed: September 15, 2016
    Publication date: March 15, 2018
    Inventors: . Aniket, Adolfo Gonzales, Robello Samuel, Robert D. Gilcrist